private static void SelectedObjectsPropertyChanged(DependencyObject source, DependencyPropertyChangedEventArgs e)
        {
            WpfPropertyGrid pg = source as WpfPropertyGrid;

            pg.CoerceValue(SelectedObjectsProperty);

            object[] collection = e.NewValue as object[];

            if (collection.Length == 0)
            {
                pg.OnSelectionChangedMethod.Invoke(pg.Designer.PropertyInspectorView, new object[] { null });
                pg.SelectionTypeLabel.Text = string.Empty;
            }
            else
            {
                bool same  = true;
                Type first = null;

                var       context   = new EditingContext();
                var       mtm       = new ModelTreeManager(context);
                Selection selection = null;

                // Accumulates the selection and determines the type to be shown in the top of the PG
                for (int i = 0; i < collection.Length; i++)
                {
                    mtm.Load(collection[i]);
                    if (i == 0)
                    {
                        selection = Selection.Select(context, mtm.Root);
                        first     = collection[0].GetType();
                    }
                    else
                    {
                        selection = Selection.Union(context, mtm.Root);
                        if (!collection[i].GetType().Equals(first))
                        {
                            same = false;
                        }
                    }
                }

                pg.OnSelectionChangedMethod.Invoke(pg.Designer.PropertyInspectorView, new object[] { selection });
                pg.SelectionTypeLabel.Text = same ? first.Name + " <multiple>" : "Object <multiple>";
            }

            pg.ChangeHelpText(string.Empty, string.Empty);
        }
Beispiel #2
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        private static void SelectedObjectPropertyChanged(DependencyObject source, DependencyPropertyChangedEventArgs e)
        {
            WpfPropertyGrid pg = source as WpfPropertyGrid;
            pg.CoerceValue(SelectedObjectsProperty);

            if (e.NewValue == null)
            {
                pg.OnSelectionChangedMethod.Invoke(pg.Designer.PropertyInspectorView, new object[] { null });
                pg.SelectionTypeLabel.Text = string.Empty;
            }
            else
            {
                var context = new EditingContext();
                var mtm = new ModelTreeManager(context);
                mtm.Load(e.NewValue);
                Selection selection = Selection.Select(context, mtm.Root);

                pg.OnSelectionChangedMethod.Invoke(pg.Designer.PropertyInspectorView, new object[] { selection });
                pg.SelectionTypeLabel.Text = e.NewValue.GetType().Name;
            }

            pg.ChangeHelpText(string.Empty, string.Empty);
        }